nos_command – Run commands on remote devices running Extreme Networks NOS

New in version 2.7.

Synopsis

  • Sends arbitrary commands to a NOS device and returns the results read from the device. This module includes an argument that will cause the module to wait for a specific condition before returning or timing out if the condition is not met.
  • This module does not support running commands in configuration mode. Please use nos_config to configure NOS devices.

Parameters

Parameter Choices/Defaults Comments
commands
- / required
List of commands to send to the remote NOS device over the configured provider. The resulting output from the command is returned. If the wait_for argument is provided, the module is not returned until the condition is satisfied or the number of retries has expired.
interval
-
Default:
1
Configures the interval in seconds to wait between retries of the command. If the command does not pass the specified conditions, the interval indicates how long to wait before trying the command again.
match
-
    Choices:
  • any
  • all ←
The match argument is used in conjunction with the wait_for argument to specify the match policy. Valid values are all or any. If the value is set to all then all conditionals in the wait_for must be satisfied. If the value is set to any then only one of the values must be satisfied.
retries
-
Default:
10
Specifies the number of retries a command should by tried before it is considered failed. The command is run on the target device every retry and evaluated against the wait_for conditions.
wait_for
-
Default:
null
List of conditions to evaluate against the output of the command. The task will wait for each condition to be true before moving forward. If the conditional is not true within the configured number of retries, the task fails. See examples.

Notes

Note

  • Tested against NOS 7.2.0
  • If a command sent to the device requires answering a prompt, it is possible to pass a dict containing command, answer and prompt. See examples.

Examples

tasks:
  - name: run show version on remote devices
    nos_command:
      commands: show version

  - name: run show version and check to see if output contains NOS
    nos_command:
      commands: show version
      wait_for: result[0] contains NOS

  - name: run multiple commands on remote nodes
    nos_command:
      commands:
        - show version
        - show interfaces

  - name: run multiple commands and evaluate the output
    nos_command:
      commands:
        - show version
        - show interface status
      wait_for:
        - result[0] contains NOS
        - result[1] contains Te
  - name: run command that requires answering a prompt
    nos_command:
      commands:
        - command: 'clear sessions'
          prompt: 'This operation will logout all the user sessions. Do you want to continue (yes/no)?:'
          answer: y

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key Returned Description
failed_conditions
list
 failed
The list of conditionals that have failed

Sample:
['...', '...']
stdout
list
 always apart from low level errors (such as action plugin)
The set of responses from the commands

Sample:
['...', '...']
stdout_lines
list
 always apart from low level errors (such as action plugin)
The value of stdout split into a list

Sample:
[['...', '...'], ['...'], ['...']]


Status

Authors

  • Lindsay Hill (@LindsayHill)

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